org-id with ox-html

[inkbottle <inkbottle007@gmail.com>]

Hi,

I want an `org-id / :ID:` publishing workflow.

To eliminate "xy-case" I first describe what I've been trying to do.

First I've added an `:ID:` to many headlines through `M-x org-id-get-create`.

Then I've added one `#+INDEX: word` under one of those headlines.

Then I've executed that (I do not have org-mode related configuration in my 
init.el for now):

#+begin_src emacs-lisp :tangle no
  (progn
    (use-package org-id)
    (setq org-id-link-to-org-use-id t)
    ;; (setq org-html-link-org-files-as-html nil)
    (setq org-publish-project-alist
          '(("project-name"
             :base-directory "~/note_taking"
             :publishing-directory "~/note_taking/html"
             :publishing-function org-html-publish-to-html
             :makeindex t)
            ("all" :components ("project-name")
             ))))
#+end_src

then `C-c C-e P a`

At this point I have both `misc.html` and `theindex.html` created, 
`theindex.html`.

The links in `theindex.html` are like: `misc.html#ID-9ca0bb24-407e-4d23-863b-
b3ff8afb90db`, as they should, I would say.

There really is: `:ID: 9ca0bb24-407e-4d23-863b-b3ff8afb90db` in `misc.org`.
But it is not translated in `misc.html`. So the link is not working. All the 
anchors in `misc.html` are in the form: `<h2 id="org1ddafea">...</h2>`. No 
`:ID:` is used.

Oh, and I also did, `M-x org-id-update-id-locations`, in case it would bring 
me any luck.


The subject has already been talked about twice at least, but I can't apply or 
understand, what have been said.

In https://lists.gnu.org/archive/html/emacs-orgmode/2009-03/msg00012.html, we 
can read this, which seems to completely address my question, though I really 
don't know how to reproduce it, and I'm not sure it's even possible:

>>> Could the org-id be added when publishing?
>>
>>> Like
>>>    <h2 id="sec-2"> HEADLINE
>>>     <span class="org-id" id="THE-ORG-ID-ITSELF">THE-ORG-ID-ITSELF</
>>> span>
>>>    </h2>
>>> or similar?
>>
>> They already are in the HTML, I am surprised you never noticed.
>
>
> ... because I didn't use IDs in my publishing projects yet :-D


The subject has also been brought up by Karl Voit with different specifications 
though. I, myself, am perfectly fine with the default function generating 
`:ID:`. The discussion however is very interesting:

https://karl-voit.at/2019/11/16/UOMF-Linking-Headings/
https://lists.gnu.org/archive/html/emacs-orgmode/2016-12/msg00423.html


Another way to put the question could be:
Is it possible, to have `:ID: 9ca0bb24-407e-4d23-863b-b3ff8afb90db`, translated 
into `id="ID-9ca0bb24-407e-4d23-863b-b3ff8afb90db"` (or sth), when exporting to 
html?

Thanks,
Chris